what's wrong with this deck?? (see pic)
Just had our deck sanded, and I think I see a problem. The diagonal floor boards closer to the bench area look shadowy or "blotchy" - especially in comparison to the other set of floor boards (closer to the photographer... me). Three questions: 1)What caused this? 2) Will these shadows show through when semitransparent stain is applied? (I'm guessing yes). 3) What can be done to remedy this? Any advice would be greatly appreciated!